gest.edu.cn - robtex.com
gest.edu.cn
| DNSSEC | ⚠️ Not signed | ||||||
| NS | ns1.service.edu.cn ⭐ | ||||||
| A | 2001:da8:257:2222::8888🇨🇳 ERX-CERNET-BKB2001:da8:257::/48 | ||||||
| A | 202.112.5.49🇨🇳 ERX-CERNET-BKB202.112.0.0/16 | ||||||
| PTR | ns1.service.edu.cn | ||||||
| NS | ns2.service.edu.cn | ||||||
| A | 2001:da8:257:1111::8888🇨🇳 ERX-CERNET-BKB2001:da8:257::/48 | ||||||
| A | 202.112.4.49🇨🇳 CNGI-BJ-IX2-AS-AP202.112.4.0/24 CMI (Customer Route) | ||||||
| PTR | ns2.service.edu.cn | ||||||
| MX | 42.247.33.160 ⭐ | ||||||
| SOA | ns1.service.edu.cn466748216@qq.com serial=2798362312 | ||||||
edu.cn
| DNSSEC | ⚠️ Not signed | ||||||
| NS | dns2.edu.cn ⭐ | ||||||
| NS | dns.edu.cn | ||||||
| NS | dns3.edu.cn | ||||||
| NS | ns2.cernet.net ⚠️ Not in parent delegation | ||||||
| NS | ns4.cernet.net ⚠️ Not in parent delegation | ||||||
| NS | ns5.cernet.net ⚠️ Not in parent delegation | ||||||
| SOA | dns.edu.cnhostmaster@net.edu.cn 2026-07-01 #23 | ||||||
Same first word
Similar names
DNS History
3 records (3 active, 0 former)
●NSns1.service.edu.cn2026-05-07 → 2026-07-04 · 2 obs
● 2026-07-04 12:48:22
●NSns2.service.edu.cn2026-05-07 → 2026-07-04 · 2 obs
● 2026-07-04 12:48:22
●MX42.247.33.1602026-05-07 → 2026-07-04 · 2 obs
● 2026-07-04 12:48:22
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | e.dns.cn, a.dns.cn, c.dns.cn, d.dns.cn... | - |
| edu.cn | dns.edu.cn, ns2.cernet.net, ns4.cernet.net, ns5.cernet.net... | 6 records |
| gest.edu.cn | ns2.service.edu.cn, ns1.service.edu.cn | 4 records |
✅ Authoritative Response
Server:202.112.5.49
NS records: ns2.service.edu.cn, ns1.service.edu.cn
🔒 DNSSEC Status
❌ Bogus (DNSSEC validation failed)
Validation error at edu.cn: Error: DNS query timeout: 203.119.29.1 for DS edu.cn
⏱️ Timing
Total: 4309ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 2 | ns2.service.edu.cn, ns1.service.edu.cn |
| MX | 1 | 42.247.33.160 (pri: 10) |
| SOA | 1 | ns1.service.edu.cn 466748216.qq.com |
📌 Glue Records Collected
Total: 10
In-bailiwick: 6 (dns.edu.cn, dns.edu.cn, dns2.edu.cn...)
Out-of-bailiwick: 4 (ns2.service.edu.cn, ns1.service.edu.cn, ns2.service.edu.cn...)
Analysis
Name Servers
Two name servers handle the delegation for gest.edu.cn: ns1.service.edu.cn and ns2.service.edu.cn.
gest.edu.cn uses the same name servers as several other domains — among them jmpt.edu.cn, sec.edu.cn, jljcxy.edu.cn and two more.
At least some of gest.edu.cn's name servers are shared with other domains, for example lfnu.edu.cn and hbjd.edu.cn.
ns1.service.edu.cn and ns2.service.edu.cn both carry two IP addresses. The A records for ns1.service.edu.cn are 202.112.5.49 and 2001:da8:257:2222::8888; the A records for ns2.service.edu.cn are 202.112.4.49 and 2001:da8:257:1111::8888.
Mail Servers
Mail for gest.edu.cn is handled by a single mail server, 42.247.33.160.